Medical exploration-illuminator.



F. G. JOUTRAS.

MEDICAL EXPLORATION ILLUMINATOR.

APPLICATION FILED FEB,10,1913.

Patented Dec. 29, 1914.

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WITNESSES v UNITED STATES PAT NT mm FBA NKLINoooPER JOUTRAS, or UNION HILL, NEW JERSEY.

MEDICAL ExPmR TIoN-ILLuMmA'roR. I

Specification of Letters Patent.

Tddll in]: am it may concern) Be 1t known that I, FR NKLIN COOPER JoU'mAs, a citizen of the United States, and

a resident of Union Hill, in the county of Hudson and 'State'of' New Jersey, have invented certain new and useful Improve-' ments in Medical -Exploration-Illuminators, of which the following is a full; clear, and

exactdescription, wherebyany one skilled in a very. small though high-powered illuminating device. substantially of pencil form which may be readily applied in conjunction with other surgical instruments for exploration purposes such as examining the nose,- throat, ear, eye and other cav ties of 'the humanbody v I A further object is to provide an illuminator of very simple form though eflicient capacity which'mav be readily assembled or taken apart for. the purpose of complete sterilizatioii and a further object is to provide an illuminator with a removable source of energy in most compact form, said source being made up of a plurality of units combined with a removable casing of pencil formwith simple means for intermittently or continuously closing the circuits.

side view of the device. Fig. 2 is a longitudinal sectional view through the casing with parts broken away to illustrate the construction. Fig. 3 is a very much enlarged viewof one of the elements of the power units in partial longitudinal section. Fig. 4

is a detail view of the closing lens. Fig.- 5 is a detail view of the end of the casing illustrating the connection of the cap with the casing. Fig. (Sis a detail side View of the carrying case for the battery. 'Fig. -7is an end view of the same.

Search-lights comprlsing a casing-with abattery and small lamp havebeen in common use for many purposes and these have been arranged in many forms. Such devices, so far as known to applicant, have been ofa more or less cumbersome character,

Referring to the drawings: Figure 1 is a cal research, where often it is important to A Patented De. 2a, 1914. Application filed February 10, 1913. Serial No. 747,518. I

secure a brilliant beam of light directly within some cavity.

The device hereinafter described is of a s1ze,- form and efficiency'w'hich makes it practicable for usein cavities of the human .body forexploration purposes. It is so ar ranged that it may be made completely sterile and isof aj'siz'e which may beintroduced into a the cavities to a. greater, or less extent Without restricting'the View of the operator. It is practically a .p'enciland may be used with great facility'even where the ment. .'-In the accompanying drawings, the nu-' 'hand' is occupied in holding another instruineral 1 denotes a metallic casing preferably of a non-corrosive character, and'one which will withstand the action of sterilizing solutions. 1T his casing has at its forward end a socke't'piece 2 of a suitable form't'o receive a lamp bulb 3. socket has side walls 4- terminating in a screw-threaded section 5. The side walls 4 are oloselyjoined at 6 with'the cylindrical casing 1, thus makingthe socket piece to all purposes and intents integral with the casing. The base 7 of the small lamp is screwed into the socket 5 with the end of the bulb 3 resting slightly within. theend of the socket. and casing. The base 7 is in this manner connected with the casing 1 and one end of the filamenti'as in the common practice employed in lamps, is connected to said base and casing. The other end of the filament is connected to an insulated central. stud 8 arranged to contact with one element of thebattery shown herein as the carbon element.

A lens 9 illustrated herein as provided with a holding ring 10 and spring fingers 11 is arranged to be inserted within the socket and tube to close the end over the lamp 3. This lens. may, of course, be" of 'anv des1red form for concentrating or amplifying the lighting effect; the lamp itself being provided at the rear of the bulb with. a reflecting'surface 12. Thelens is made readily removable so that it may be thoroughly sterilized and cleansed with the other parts of the device- 'As illustrated herein, the- The source of electricalenergy, as illustrated herein, consists of two units of the sowithin an insulating capsule or casing 13 so" that the completebattery may be readily removed or inserted within the illuminator casing 1. A carrying case, as illustrated in Figs. 6 and 7, is also provided for. carrying an extra battery,this being also of pencil I form and substantially of the same dimensions as the illuminator casing 1. It is provided with a removable cap bearing an insulator to prevent short-circuiting of the batte'ry while being carried and the ends of the casing are perforated to prevent an accumulation of moisture when the casing is closed. i

7 As illustrated in Fig. 3, each of the cells making up the complete battery consists of an outer metallic casing 14:, which is closed at one end as at 15 and open atthe opposite end. This constitutes the zinc or metallic element of the battery. Adjacent to the lower end 15 is a cap of insulating material as, for instance, fiber-board 16, which is suitably secured to a casing of fabric 17 which contains the-active material or electrolyte. This fabric is of. substantially cylindrical form fitting within the zinc casing 1 and has centrally arranged therein, the carbon element 18 which projects through an insulating seal 19 and terminates in a metallic cap 20, which projects slightly beyond the end of. the zinc casing 14. Two of these elements-are arranged in series within'the' insulating casing or capsale 13. the carbon element 18 through its terminal contact 20, bearing against the.

zinc base 15 of the preceding battery. The

carbon contact 20 when the capsule is in.

place .within the illuminator casingd-bears against the central contact of thelamp and is forced into intimate contact therewith by a spring 21 which is suitably secured to the metallic or zinc end of one of the batteriesand through a suitable make and break switch, completes the circuit of the battery and lamp through the metallic illuminator purpose. When under compression it forces the battery contact 20 against the lamp contact and insures a.firmcontact with a metallic member 22 illustrated herein as a screw passing through the cap 23 of the casing 1,

though insulated therefrom by washers 24, 25 placed on either side of the cap. The cap 23 is secured to the casing 1 through a. bayonet lock consisting of grooves 26 at the end of the casing l cooperating with pins- 27 projecting from the inner walls of the cap. The spring 21 thus serves not only to make a firm electrical contact between the member 22 and" the battery, but exerts a the member 22 exteriorly of the casing and pro ects over the end thereof and over-lies the side of the casing 1. Normally its end 29 is out of contact with the casingl but when depressed by the finger completes the circuit of the batteries and lamp. This contact device may also be rotated upon the stud 22-and brought into a position of contact with a pin 30 which is inelectrical contact with the cap 23 and projects through. the insulating washer 25. l/Vhen it is desired to use the instrument merely for a moment, the contact device 28 may be depressed against the casing, closing the circuit. If it is desired to use the light for a considerable period, said contact device is rotated until it -makes electrical contact with the pin 30.

To insure an open circuit condition when the device is carriedin the pocket, a sliding insulating member31 closely encircling the casing 1 may be slid under the end 29 of the contact'finger. This will prevent the closing of the circuit whenever the finger is turned out of contact with the contact pin 30 asthe finger will then be completely insulated from the casing 1 and will not be inadvertently pressed against it. It will be noted from the above that .the device is i a most compact form and may be readily carried in the'pocket or in a suitable case adaptable for the pocket. It is substantially' of pencil form and if desired, the clamp 28 may be passed over the side of the pocket while carrying the device, thus insuring the ofi-ci'rcuit position of the contact.

- The device is capable of complete sterilization and thus is effective for physicians and surgeons use.

Obviously, the exactdetails and arrangement of parts may be varied to suit the exigencies of any particular case and it may be applied to surgical instruments of variousforms if desired. It is light and compact enough tobe so used and although. very small in construction is of comparatively great capacity, the lamp .burning for an hour or more continuously before depleting the battery toany great extent.

What I claim as my invention and desire to secure by Letters Patent is:

1. "An exploration illuminator comprising a casing, a lamp operatively arranged in one end ofsaid casing,'a'battery having one terminal engaging the terminal of the lamp and normally insulated from the casing, a contact device and an insulating band movable upon the casing and adaptedto'be interposed between the casing and contact device. I

2. An exploration illuminator comprising a casing, a'lamp operatively arranged at one end of said casing, a battery having sulating band encircling the casing and one element in engagement with the lamp adapted to be interposed between the casing and normaliy insulated from the casing and and contact device.

a contact device normally insulated from the FRANKLIN COOPER JOUTRAS. casing though electricallyconnectedwiththe Witnesses:

battery, said contact device adapted to close KATE BRENNER,

the circuit through the casing, and an in- FRANCIS Coma'nr. 

